CVE-2022-48899
In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fix GEM handle creation UAF Userspace can guess the handle value and try to race GEM object creation with handle close, resulting in a use-after-free if we dereference the…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fix GEM handle creation UAF Userspace can guess the handle value and try to race GEM object creation with handle close, resulting in a use-after-free if we dereference the object after dropping the handle's reference. For that reason, dropping the handle's reference must be done *after* we are done dereferencing the object.
- CVSS 3.1
- 4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/011ecdbcd520c90c344b872ca6b4821f7783b2f8Patch
- https://git.kernel.org/stable/c/19ec87d06acfab2313ee82b2a689bf0c154e57eaPatch
- https://git.kernel.org/stable/c/52531258318ed59a2dc5a43df2eaf0eb1d65438ePatch
- https://git.kernel.org/stable/c/68bcd063857075d2f9edfed6024387ac377923e2Patch
- https://git.kernel.org/stable/c/adc48e5e408afbb01d261bd303fd9fbbbaa3e317Patch
- https://git.kernel.org/stable/c/d01d6d2b06c0d8390adf8f3ba08aa60b5642ef73Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.